APA (7th ed.) Citation

Fromkin, V., Rodman, R., & Hyams, N. (2011). An introduction to language (9a. ed.). Wadsworth Cengage Learning.

Chicago Style (17th ed.) Citation

Fromkin, Victoria, Robert Rodman, and Nina Hyams. An Introduction to Language. 9a. ed. Wadsworth Cengage Learning, 2011.

MLA (9th ed.) Citation

Fromkin, Victoria, et al. An Introduction to Language. 9a. ed. Wadsworth Cengage Learning, 2011.